Q-618捕收剂浮选东鞍山铁矿石的研究

根据浮选药剂组合作用及其与金属离子的螯合原理。本文将不同的分子结构基因经过一系列化学反应,科学配制成Ｑ－６１８捕收剂。该药剂在软水介质中、试验室条件下,选别东鞍山易选、难选矿石均取得了较好指标。     

用Q—618新型捕收剂浮选东鞍山铁矿石的试验研究

本文首先叙述了Ｑ－６１８型捕收剂的性质，制备工艺及作用机理，并通过其对东鞍山铁矿石的浮选试验表明，该药剂是较较捕收剂，尤其是在软水介质中对难选矿的选别指标是令人满意的。     

东鞍山难选矿石工艺矿物学研究

介绍了东鞍山难选矿石含铁绿泥假象赤铁矿石、高亚铁矿石、半氧化矿石和含碳酸盐假象赤铁矿石的矿物组成,并分别分析了其镶嵌特征,对含铁绿泥假象赤铁矿石、高亚铁矿石和半氧化矿石3种难选矿石中矿物的含量、粒度特征进行了研究,对东鞍山铁矿石铁矿物粒度变化趋势进行了分析,并提出从选矿上改进难选矿石选别指标的建议。     

东鞍山“难选矿石”选别工艺采矿联合流程的必要性

本文通过对东鞍山“难选矿石”选别工艺的试验研究，针对目前东烧单一浮选生产流程现状及东鞍山“难选矿石”的特点，阐述了选别东鞍山“难选矿石”采用联合流程的必要性。     

东鞍山铁矿石脱泥－反浮选工艺流程研究

东鞍山铁矿石的矿石类型及铁矿物种类多，矿物嵌布粒度细，矿泥量大，阴离子碱性正浮选流程不能适应矿石性质的变化。脱泥－反浮选流程适应东鞍山铁矿石的特性，通过对关键技术的研究，可在常规磨矿细度（－０．０７５ｍｍ占８５％）下实现脱泥－反浮选工艺。工业分流试验表明，对于正常矿石，可获得铁品位６３．６６％，回收率８０．１３％的铁精矿；对于难选矿石，铁精矿品位６２．８３％，回收率７５．４８％。     

东鞍山难选矿选矿技术研究的进展

本文对东鞍山难选矿的矿石性质、难选矿选别采用的新药剂、新工艺和设备所获的进展作了介绍，分析了影响难选矿选别的技术经济指标的关键问题，并对难选矿精矿质量作了探讨。     

分级分支浮选工艺选别东鞍山铁矿石的试验研究

本文首先提出解决东烧厂难选矿的选别问题已势在必行，接着介绍了分级分支浮选工艺的试验室试验研究情况，最后详细叙述了分级分支浮选的工业分流试验，分析结果表明，该工艺处理东鞍山铁矿石指标先进、工艺合理，特别是由于该工艺细粒采用了强磁脱泥，浮选采用了对赤铁矿，磁铁矿都具有较好捕收能力的的石油磺酸钠为捕收剂，更适合处理难选矿。     

M203捕收剂浮选东鞍山高亚铁难选贫赤铁矿工业试验

本文对以石油磺酸钙为主的磺酸盐类型新药剂－Ｍ２０３捕收剂处理东鞍山高亚铁贫赤铁矿石的工业试验作了介绍。工业试验结果表明，在入选平均品位３１．８０％，含亚铁４．０３％的条件下，与原氧化石腊皂和塔尔油混合药剂的选别指标对比，回收率提高１３．３２％，为处理这类难选矿石提供了一种有效的捕收剂。     

东鞍山难选矿“脱泥─反浮选”新工艺工业分流试验

概述了“脱泥─反浮选”新工艺处理东鞍山铁矿石工业分流试验结果，对试验结果的代表性与先进性及其经济效益进行了分析与评估，并讨论了主要作业的选别效果，认为“脱泥─反浮选”工艺是处理复杂难选铁矿石较理想的方案。     

东鞍山难选矿“脱泥—反浮选”新工艺工业分流试验

概述了“脱泥－反浮选”新工艺处理东鞍山铁矿石工业分流试验结果，对试验结果的代表性与先进性及其经济效益进行了分析与评估，并讨论了主要作业的选别效果，认为“脱泥－反浮选”工艺是处理复杂难选铁矿石较理想的方案。     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

2014 second batch of rare earth quota released

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矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586